Knife sharpener

Details Knife sharpener Knife sharpener

1987-01-12

1988-03-22

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51214, 76 88, 76 86, 76 82, B24D 1508

Patent

active

047319577

ABSTRACT:
The invention is directed to a blade sharpening device formed from two mating longitudinal body portions. An opening is provided at one end of the sharpening device from which the apex of an equilateral triangular shaped cutting blade extends into the opening. The inside corners of the opening walls and the back wall of recesses in each body portion lock the cutter blade in position and prevent movement there of when in use for sharpening. The cutter blade can be rotated to provide a new cutting edge. Extra cutter blades can be stored within the mating body portions. A thumb guard may be included.

REFERENCES:
patent: 606000 (1898-06-01), Clark
patent: 665895 (1901-01-01), Foster
patent: 833499 (1906-10-01), Baries
patent: 942172 (1909-12-01), Hawks
patent: 1531005 (1925-03-01), Hartley
patent: 2885836 (1959-05-01), Robitaille
patent: 3861087 (1975-01-01), Martin
patent: 4418588 (1983-12-01), Byers
patent: 4510824 (1985-04-01), Byers

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